1225545434 has 8 divisors (see below), whose sum is σ = 1838726868. Its totient is φ = 612636480.

The previous prime is 1225545427. The next prime is 1225545443. The reversal of 1225545434 is 4345455221.

It can be written as a sum of positive squares in 2 ways, for example, as 1061782225 + 163763209 = 32585^2 + 12797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1225545434² = 3003923221596496712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225545394 and 1225545403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56477 + ... + 75104.

Almost surely, 2^1225545434 is an apocalyptic number.

1225545434 is a deficient number, since it is larger than the sum of its proper divisors (613181434).

1225545434 is a wasteful number, since it uses less digits than its factorization.

1225545434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136240.

The product of its digits is 96000, while the sum is 35.

The square root of 1225545434 is about 35007.7910471369. The cubic root of 1225545434 is about 1070.1462617774.

The spelling of 1225545434 in words is "one billion, two hundred twenty-five million, five hundred forty-five thousand, four hundred thirty-four".